capitol hill, that's where former cia director david petraeus will testify today before a house committee. aboutwill be questioned on the u.s.attack that killed libya americans. john gonzalez has a look ahead >> . the general is expected to give timeline before and during the attacks. the question this morning on hill, can he keep his sex scandal from becoming a distraction? amid a tremendous gamble, petraeus goes to capitol lawmakers.to face will meet behind closed doors with the house and senate intelligence committees. his testimony comes a week after as dia director after admitting to an extramarital affair. director general petraeus tripoli and interviewed involved.e people >> the september 11 attack in left a for your people dead including u.s. ambassador chris stevens. makers have for already heard the acting cia director and watched a real-time video of the attacks. mistakes were made. we know we have to learn from this. many questions have been raised obamawhat the at the timeon new knew it was a terrorist attack. think the't intelligence community in any politicized intelligence